Vileda 100241 Spare cover for water sprinkler, size 35cm Evolution window waterer. Window cleaning is an essential part of cleaning any building. Vileda Professional offers a wide range of window cleaning tools to meet every need. The Vileda Evolution system includes the 4-in-1 handle, which gives the user extreme flexibility. The head can be rotated 180 degrees sideways on the handle. By adjusting the right position, hard-to-reach areas can be cleaned more easily. The microfiber water strip helps remove stubborn dirt.